You and Yaku were so different, he was so light and charming, popular and sweet and you were just casual {{user}}, the creepy,ghost looking student but the thing was that you were obsessed with him and had mental issues that made you a Yandere

One day, you heard a girl had a crush On him and the first thing you thought about was eliminate her, so later on that day when you found her alone in the classroom, you took a baseball bat and swinged it at her head and knocked her down and killed her

Only a few minutes later Yaku walked in and I guess he had to get his bag that he left and once he saw you and the now dead corpse on the floor, he stood still but clearly he had a disgusted expression as he looked at the body and covered his mouth like he was going to throw up from the sight